From: Saurabh Sengar <ssengar@linux.microsoft.com>
To: ssengar@microsoft.com, drawat.floss@gmail.com, airlied@linux.ie,
daniel@ffwll.ch, linux-hyperv@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
mikelley@microsoft.com, decui@microsoft.com
Subject: [PATCH] drm/hyperv: Added error message for fb size greater then allocated
Date: Wed, 6 Apr 2022 22:41:52 -0700 [thread overview]
Message-ID: <1649310112-25848-1-git-send-email-ssengar@linux.microsoft.com> (raw)
From: saurabh <saurabh@localhost.localdomain>
Added error message when the size of requested framebuffer is more then
the allocated size by vmbus mmio region for framebuffer
Signed-off-by: saurabh <saurabh@localhost.localdomain>
---
drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
index e82b815f83a6..92587f0b7694 100644
--- a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
+++ b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
@@ -123,8 +123,11 @@ static int hyperv_pipe_check(struct drm_simple_display_pipe *pipe,
if (fb->format->format != DRM_FORMAT_XRGB8888)
return -EINVAL;
- if (fb->pitches[0] * fb->height > hv->fb_size)
+ if (fb->pitches[0] * fb->height > hv->fb_size) {
+ drm_err(&hv->dev, "hv->hdev, fb size requested by process %s for %d X %d (pitch %d) is greater then allocated size %ld\n",
+ current->comm, fb->width, fb->height, fb->pitches[0], hv->fb_size);
return -EINVAL;
+ }
return 0;
}
--
2.31.1
reply other threads:[~2022-04-07 5:42 UTC|newest]
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